2-amino-5-mercapto-1,3,4-thiadiazole with bis-aldehydes 1a–c. Further reaction of compounds 3a–d and 6a–c with dibromoalkanes afforded the new macrocycles 5a–f and 8a–d. The cyclization does not require high dilution techniques and provides the expected azathia macrocycles in good yields, ranging from 55% to 68%.
一系列新的1,2 / 1,3-双[ o-(N-亚甲基
氨基-5-芳基-3-
硫醇-4 H -
1,2,4-三唑-4-基)苯氧基]烷衍
生物3a – d和双[ o-(N-亚甲基
氨基-2-
硫醇-1,3,4-
噻二唑-5-基)苯氧基]
烷烃6a – c是通过4-
氨基-5-(芳酰基)-4 H缩合制备的-
1,2,4-三唑-3-
硫醇2a – b或
2-氨基-5-巯基-1,3,4-噻二唑与双醛1a – c。化合物3a – d和6a – c的进一步反应与二
溴代
烷烃一起提供了新的大环化合物5a - f和8a - d。环化不需要高稀释度技术,并且可以以55%至68%的高收率提供预期的氮杂
硫磷大环化合物。